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RAM system

The RAM system enables safe, efficient and low-reaction bolt connections with ITH nut runners – for maximum work safety and process reliability in industrial applications.

Safe

No reaction arm required

Efficient

Faster & without holding back

Fixed

Connection remains permanently fixed

Advantages

Product benefits at a glance

The ITH RAM system is the innovative solution for low-reaction bolt connections with ITH nut runners. The axial force application avoids bending and shear forces in the bolt connections and significantly increases process reliability.

Low-reaction bolting increases occupational safety and protects users

No counter-holding necessary - the bolting process is faster and more efficient

Axial force application during low-reaction bolting prevents bending and shear forces

Less wear and damage to components and tools in use

Permanent fixing of the connection ensures maximum process reliability during operation

Suitable for high-strength bolts and various thread sizes in the industrial sector

ITH Smart Tools

With ITH Smart Tools, you can make a wide variety of bolting tools simple and smart – regardless of the device type. Thanks to the cloud connection, you can detect, monitor and document assembly processes centrally, across locations and in real time. Benefit from maximum transparency, efficiency and traceability in your production.

Information

RAM system Specifications

The ITH RAM system is an innovative solution for low-reaction bolt connections with ITH nut runners. It applies the tightening torque axially, prevents bending and shear forces in the bolt connection and provides reliable protection against the connection loosening automatically

Innovative bolting solution
The ITH RAM system (Reaction Armless Modification) was specially developed for industrial bolting processes where occupational safety and process reliability have the highest priority. Bending and shear forces in the bolt connection are completely avoided thanks to the axial introduction of the torque.

Components for maximum efficiency
The system consists of three perfectly coordinated components:

  • ITH RAM Support (low-reaction reaction arm)
  • ITH RAM Disc (two-layer fuse element)
  • ITH Counter Disc (optional counter disc for through-bolts).

Safe and fast assembling
Dispensing with a classic reaction arm eliminates the risk of crushing and shortens the assembly time, as counterholder measures are no longer required. At the same time, adjacent machine parts and tools are protected.

Reliable bolt locking
The ITH RAM Disc prevents the connection from loosening automatically thanks to its wedge locking principle – even under dynamic load. The optional ITH Counter Disc, which prevents the opposite side from turning, ensures maximum process reliability.

  • Axial introduction of torque without bending or shear forces
  • Low-reaction bolt connections with ITH nut runners
  • Increased work safety (no risk of crushing)
  • Shorter bolting time, as no counter-holding necessary
  • Less wear and damage to components and tools
  • Permanent protection against automatic loosening of the connection
  • Suitable for high-strength screws (10.9/10, optionally 12.9/12)
  • Available for thread sizes M16 to M36

Optional:

  • ITH Counter Disc for through-bolt connections (prevents the opposite side from turning)

ITH RAM Disc, dimensioned

ITH RAM Disc

Thread size Order no. Hole diameter
d₁
Outer diameter
d₂
Thickness
h
[mm] [mm] [mm] [mm]
M16 40.01130-1016 17,0 30,9 5,5
M20 40.01130-1020 21,4 36,9 5,5
M24 40.01130-1024 26,3 47,2 5,5
M30 40.01130-1030 33,4 58,5 6,5
M36 40.01130-1036 39,4 69,5 6,5

 

 

ITH Counter Disc

Thread size Order no. Hole diameter
d₁
Outer diameter
d₂
Thickness
h
[mm] [mm] [mm] [mm]
M16 40.01130-2016 17,0 25,4 2,0
M20 40.01130-2020 21,4 30,7 2,0
M24 40.01130-2024 26,3 39,0 3,5
M30 40.01130-2030 33,4 47,0 3,5
M36 40.01130-2036 39,4 55,0 3,5

 

 

ITH RAM Support

Thread size Order no. Height
h
Diameter
D₁
Diameter
D₂
Across flats (A/F-width) Drive
[mm] [mm] [mm] [mm] [″]
M16 31.01535-25016 80 55 38,5 24 3/4
M20 31.01535-25020 97 70 46 30 3/4
M24 31.01535-25024 108 70 57 36 1
M30 31.01535-25030 118 72 69 46 1
M36 31.01535-27036 131 81 81 55 1
M36 31.01535-34036 145 97 82 55 1 1/2

ITH RAM Disc, dimensioned

ITH RAM Disc

Thread size Order no. Height h [mm] Diameter D₁ [mm] Diameter D₂ [mm] Across flats (A/F-width) [mm] Drive [″]
M16 31.01535-25016 80 55 38.5 24 3/4
M20 31.01535-25020 97 70 46 30 3/4
M24 31.01535-25024 108 70 57 36 1
M30 31.01535-25030 118 72 69 46 1
M36 31.01535-27036 131 81 81 55 1
M36 31.01535-34036 145 97 82 55 1 1/2

ITH Counter Disc

Thread size Order no. Hole diameter d₁ [mm] Outer diameter d₂ [mm] Thickness h [mm]
M16 40.01130-2016 17.0 25.4 2.0
M20 40.01130-2020 21.4 30.7 2.0
M24 40.01130-2024 26.3 39.0 3.5
M30 40.01130-2030 33.4 47.0 3.5
M36 40.01130-2036 39.4 55.0 3.5

ITH RAM Support

Thread size Order no. Height
h
Diameter
D₁
Diameter
D₂
Across flats (A/F-width) Drive
[mm] [mm] [mm] [mm] [“]
M16 31.01535-25016 80 55 38,5 24 3/4
M20 31.01535-25020 97 70 46 30 3/4
M24 31.01535-25024 108 70 57 36 1
M30 31.01535-25030 118 72 69 46 1
M36 31.01535-27036 131 81 81 55 1
M36 31.01535-34036 145 97 82 55 1 1/2
  • ITH RAM Support (low-reaction reaction arm)
  • ITH RAM Disc (lock washer)
  • operating instruction

Optional:

  • ITH Counter Disc

Seals and certificates

Excellent quality

Seals and certificates

Excellent quality

TÜV Nord Logo

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